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    <title>Preparing</title>
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    <h1 style="color:#333;font-size:48px">What is happening?</h1>
    <p style="color:green;font-weight:bold;">Please do not stop the stack while we are initializing the database or do other preparations.</p>
    <p style="font-size:small"><b>What is happening?</b> - Nginx cannot connect to an upstream server or other services are not ready yet.<br>
    This is fine if mailcow was just
    installed or updated and can take a few minutes to complete.<br>
    Please check the logs or contact support if the error persists.</p>
    <h2>Quick debugging</h2>
    <p>Check Nginx and PHP logs:</p>
    <pre>docker compose logs --tail=200 php-fpm-mailcow nginx-mailcow</pre>
    <p>Make sure your SQL credentials in mailcow.conf (a link to .env) do fit your initialized SQL volume. If you see an access denied, you might have the wrong mailcow.conf:</p>
    <pre>source mailcow.conf ; docker compose exec mysql-mailcow mysql -u${DBUSER} -p${DBPASS} ${DBNAME}</pre>
    <p>In case of a previous failed installation, create a backup of your existing data, followed by removing all volumes and starting over (<b>NEVER</b> do this with a production system, it will remove <b>ALL</b> data):</p>
    <pre>BACKUP_LOCATION=/tmp/ ./helper-scripts/backup_and_restore.sh backup all</pre>
    <pre>docker compose down --volumes ; docker compose up -d</pre>
    <p>Make sure your timezone is correct. Use "America/New_York" for example, do not use spaces. Check <a href="https://en.wikipedia.org/wiki/List_of_tz_database_time_zones">here</a> for a list.</p>
    <br>Click to learn more about <a style="color:red;text-decoration:none;" href="https://docs.mailcow.email/#get-support" target="_blank">getting support.</a>
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